Does MonetDBLite support auto-commit mode?

Question

I am trying to optimize data upload in an R package using MonetDBLite. As per the MonetDB website, using LOCKED mode can speed up upload:

LOCKED mode

In many bulk loading situations, the original file can be saved as a backup or recreated for disaster handling. This reliefs the database system from having to prepare for recovery as well and to safe significant storage space. The LOCKED qualifier can be used in this situation (and in single user mode!) to skip the logging operation normally performed.

However, when I try to run my COPY INTO statement with LOCKED mode I get the error:

Server says 'ParseException:SQLparser:COPY INTO .. LOCKED: only allowed in auto commit mode'.

Reading the CRAN MonetDBlite documentation would have me believe that the standard mode is auto-commit, eg. the documentation for dbTransaction():

dbTransaction is used to switch the data from the normal auto-commiting mode into transactional mode. Here, changes to the database will not be permanent until dbCommit is called. If the changes are not to be kept around, you can use dbRollback to undo all the changes since dbTransaction was called.

but perhaps this isn't true since I'm getting the above error.

Does anyone have any insight?